Modern chair



FIG. 1 is a front perspective view of a modern chair showing my new design;

FIG. 2 is a left side elevation view of FIG. 1;

FIG. 3 is a right side elevation view of FIG. 1;

FIG. 4 is a top plan view of FIG. 1;

FIG. 5 is a bottom view of FIG. 1;

FIG. 6 is a front elevation view of FIG. 1; and,

FIG. 7 is a rear elevation view of FIG. 1.

The broken lines showing portions of the modern chair illustrate portions of the article that form no part of the claimed design. 

CLAIM The ornamental design for a modern chair, as shown and described. 